Arguments
file
a character string with filename, usually having extension
".csv", where to save the downloaded data.
query
a character string, denoting the location of the data at the
web site.
save
a logical value, if set to TRUE the downloaded data file will
be stored under the path and file name specified by the
string file. By default FALSE.
source
a character string setting the URL of the source.
If NULL, then the URL will be set automatically to its
default value.
try
a logical value, if set to TRUE the Internet access will be
checked.